Results 91 to 100 of about 136,279 (344)
Results in Earth SciencesNegative activation volumes for dielectric relaxation are rarely reported in solid state physics and are limited to atomic scale processes. Broadband Dielectric Spectroscopy on heterogeneous systems, such as polycrystalline calcite and magnesite, hosting
Anthony N. Papathanassiou
doaj +1 more source
A model for the scattering of high-frequency electromagnetic fields from dielectrics exhibiting thermally-activated electrical losses [PDF]
An equivalent circuit model (ECM) approach is used to predict the scattering behavior of temperature-activated, electrically lossy dielectric layers. The total electrical response of the dielectric (relaxation + conductive) is given by the ECM and used ...
Hann, Raiford E.
core +1 more source
Surface participation and dielectric loss in superconducting qubits
, 2015 We study the energy relaxation times ($T_1$) of superconducting transmon qubits in 3D cavities as a function of dielectric participation ratios of material surfaces.
C. Axline +7 more
core +1 more source
Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry
Advanced Functional Materials, EarlyView.In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite +5 more
wiley +1 more source
Modelling dielectric relaxation with neural networks
Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2009 We describe a software model for media with dielectric relaxation. In particular, a model identification is used to measure the phenomenological coefficients which occur in a mathematical description of dielectric relaxation phenomena in electromagnetic ...
Nicola Barbalace
doaj +1 more source
Structure and electrical characterization of ZnO-Ag phosphate glasses
Results in Physics, 2017 Silver zinc phosphate glasses with a composition (40 − x/2) P2O5 – (40 − x/2) Na2O–20ZnO–x AgNO3 (x = 5, 10 and 15 mol%) were prepared of the glasses via conventional melt-quenching technique.
A. Langar +3 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Rational halogen mixing strategy was employed to shift the bandgap of Cs2PbBr2I2 from ultraviolet to visible region, enabling first realization of a visible‐light photodetector with this 2D layered Ruddlesden‐Popper perovskite material. Under illumination, light‐induced internal field forms and drives trap‐mediated persistent photoconductivity ...
Md Fahim Al Fattah +11 more
wiley +1 more source
, 2011 Transient electric signals emitted prior to earthquake occurrence are recorded at certain sites in the Earth's crust termed sensitive. These field observations enforce the laboratory investigation of the dielectric response of rocks forming these ...
A.N. Papathanassiou +38 more
core +1 more source
Dielectric Relaxation in a Nanosize Ferroelectric with an Incommensurate Phase Rb2ZnCl4
, 2023 Л. Н. Коротков +4 more
openalex +2 more sources
Broadband, Flexible, Skin‐Compatible Carbon Dots/Graphene Photodetectors for Wearable Applications
Advanced Functional Materials, EarlyView.Broadband, flexible photodetectors integrating nitrogen‐rich carbon dots with single‐layer graphene on plastic substrates are demonstrated. A biocompatible chitosan–glycerol electrolyte enables efficient low‐voltage gating and on‐skin operation. The devices exhibit ultraviolet‐to‐near‐infrared response, mechanical robustness under bending, and verified
Nouha Loudhaief +20 more
wiley +1 more source